html,body{
	height: 100%;
}
body{
	overflow: hidden;
}
/*————————————————————————————————————————————————————————————————————————————————————————————————————————————————*/
.btn_dot{
	width: 20px;
	position: fixed;
	top: 40%;
	right: 15px;
	z-index: 2;
}
.btn_dot li{
	display: inline-block;
	width: 10px;
	height: 10px;
	border-radius: 50%;
	background: rgba(0,0,0,0.2);
	cursor: pointer;
}
.btn_dot li.active{
	background: black;
}
/*————————————————————————————————————————————————————————————————————————————————————————————————————————————————*/
.doc_box{
	width: 100%;
	height: 100%;
	position: relative;/*header部分采用固定定位*/
}
.doc_box>div{
	width: 100%;
	height: 100%;
	position: relative;
	overflow: hidden;
}
.screen1{
	background: url('../img/bg_1.jpg') no-repeat center;
	background-size: 100% 100%;
}
.screen2{
	background: url("../img/bg_6.jpg") no-repeat center;
	background-size: 100% 100%;
}
.screen3{
	background: url("../img/bg_5.jpg") no-repeat center;
	background-size: 100% 100%;
}
.screen4{
	background: url('../img/s_bg.jpg') no-repeat center;
	background-size: 100% 100%;
}
.screen5{
	background: url("../img/bg_5.jpg") no-repeat center;
	background-size: 100% 100%;
}
.screen6{
	background: url("../img/bg_6.jpg") no-repeat center;
	background-size: 100% 100%;
}
.screen7{
	background: #d5d5d5;
}
.login_btn button{
	width: 200px;
}
/*————————————————————————————————————————————————————————————————————————————————————————————————————————————————*/
.screen1 .pic_logo{
	text-align: right;
	margin-top: 70px;
}
.screen1 .pic_logo img{
	width: 350px;
	margin-right: 20px;
	transition: all 1s;
}
.screen1 .tli{
	position: absolute;
	top: 50%;
	left: 0;
	right: 0;
	text-align: center;
	margin-top: -125px;
}
.screen1 .tli img{
	width: 850px;
	transition: all 1s;
}

.screen1 .login_btn{
	position: absolute;
	bottom: 25%;
	left: 0;
	right: 0;
	transition: all 1s;
}
/*————————————————————————————————————————————————————————————————————————————————————————————————————————————————*/
.screen2 .pic_img_box img{
	width: 850px;
	margin-top: 20%;
	transition: all 1.5s;
}
.screen2 .con{
	margin-top: 35%;
	margin-left: 50%;
	transition: all 2s;
}
.screen2 .con ul li p{
	margin: 15px 0;
	color: #999;
}
.screen2 .con ul li span{
	display: block;
	height: 1px;
	background: #d5d5d5;
	margin-bottom: 15px;
}
/*————————————————————————————————————————————————————————————————————————————————————————————————————————————————*/
.screen3 {
	color: #fff;
}
.screen3 .con{
	position: absolute;
	top: 25%;
	left: 12%;
}
.screen3 .con h4{
	transition: all 1s;
}
.screen3 .con h1{
	margin: 10px 0;
	transition: all 1s;
	transition-delay: 0.4s;
}
.screen3 .con p{
	margin-bottom: 20px;
	color: #f2f2f2;
	transition: all 1s;
	transition-delay: 0.8s;
}
.screen3 .login_btn{
	transition: all 1s;
	transition-delay: 0.8s;
}
.screen3 .pic_img_box{
	position: absolute;
	top: 20%;
	right: 10%;
	transition: all 1.5s;
}
.screen3 .pic_img_box img{
	width: 850px;
}
/*————————————————————————————————————————————————————————————————————————————————————————————————————————————————*/
.screen4 .con{
	position: absolute;
	top: 30%;
	left: 20%;
	z-index: 900;
}
.screen4 .con ul li p{
	margin: 15px 0;
	color: #999;
}
.screen4 .con ul li span{
	display: block;
	height: 1px;
	background: #d5d5d5;
	margin-bottom: 15px;
}
.screen4 .con ul li:nth-child(1) span{
	width: 312px;
}
.screen4 .con ul li:nth-child(2) span{
	width: 432px;
}
.screen4 .con ul li:nth-child(3) span{
	width: 512px;
}
.screen4 .pic_img_box{
	width: 1000px;
	position: absolute;
	left: 50%;
	margin-left:-500px;
	top: 170px;
	bottom: 0;
}
.screen4 .pic_img_box img{
	position: absolute;
	top: 50%;
}
.screen4 .pic_img_box img:nth-child(1){
	width: 80px;
    height: 55px;
    margin-top: -250px;
    right: 590px;
    z-index: 3;
    transition: all 1s;
}
.screen4 .pic_img_box img:nth-child(2){
	width: 115px;
    height: 80px;
    margin-top: -245px;
    right: 530px;
    z-index: 4;
    transition: all 1s;
    transition-delay: 0.1s;
}
.screen4 .pic_img_box img:nth-child(3){
    width: 140px;
    height: 90px;
    margin-top: -235px;
    right: 480px;
    z-index: 5;
    transition: all 1s;
    transition-delay: 0.2s;
}
.screen4 .pic_img_box img:nth-child(4){
    width: 180px;
    height: 120px;
    margin-top: -230px;
    right: 410px;
    z-index: 6;
    transition: all 1s;
    transition-delay: 0.3s;
}
.screen4 .pic_img_box img:nth-child(5){
    width: 230px;
    height: 150px;
    margin-top: -220px;
    right: 326px;
    z-index: 7;
    transition: all 1s;
    transition-delay: 0.4s;
}
.screen4 .pic_img_box img:nth-child(6){
	width: 300px;
    height: 200px;
    margin-top: -210px;
    right: 220px;
    z-index: 8;
    transition: all 1s;
    transition-delay: 0.5s;
}
.screen4 .pic_img_box img:nth-child(7){
	width: 360px;
    height: 220px;
    margin-top: -175px;
    right: 115px;
    z-index: 9;
    transition: all 1s;
    transition-delay: 0.6s;
}
.screen4 .pic_img_box img:nth-child(8){
    width: 420px;
    height: 260px;
    margin-top: -140px;
    right: 0;
    z-index: 10;
    transition: all 1s;
    transition-delay: 0.7s;
}
.screen4 .pic_img_box img:nth-child(9){
    width: 450px;
    height: 310px;
    margin-top: -110px;
    right: -90px;
    z-index: 11;
    transition: all 1s;
    transition-delay: 0.8s;
}
/*————————————————————————————————————————————————————————————————————————————————————————————————————————————————*/
.screen5 .box{
	width: 1000px;
	margin: 160px auto 0;
	color: #fff;
}
.screen5 .box>h4{
	transition: 1s;
}
.screen5 .box>h2{
	margin: 10px 0;
	transition: 1s;
	transition-delay: 0.2s;
}
.screen5 .box>p{
	transition: 1s;
	transition-delay: 0.4s;
}
.screen5 .box .con{
	margin: 30px 0;
	overflow: hidden;
	transition: 0.8s;
	transition-delay: 0.8s;
}
.screen5 .box .con-left ul li,
.screen5 .box .con-right ul li{
	margin: 5px 0;
	overflow: hidden;
}
.screen5 .box ul li div h4,
.screen5 .box ul li div p{
	line-height: 32px;
}
.screen5 .box ul li div p{
	color: #f2f2f2;
}
.screen5 .box .con-left ul li div{
	float: right;
	margin-right: 15px;
}
.screen5 .box .con-right ul li div{
	float: left;
	margin-left: 15px;
}
.screen5 .login_btn{
	transition: 1s;
	transition-delay: 1.2s;
}
/*————————————————————————————————————————————————————————————————————————————————————————————————————————————————*/
.screen6 .box{
	width: 1200px;
	margin: 180px auto 0;
}
.screen6 .box .con{
	margin-top: 30px;
	overflow: hidden;
}
.screen6 .box .con > div{
	float: left;
}
.screen6 .box .con .left{
	width: 32px;
	height: 32px;
	border: 1px solid #666;
	border-radius: 50%;
	margin-right: 10px;
	font-size: 24px;
	line-height: 32px;
}
.screen6 .box .con .right ol li{
	margin-top: 10px;
}
.screen6 .box .con:nth-child(1){
	transition: 1s;
	transition-delay: 0.3s;
}
.screen6 .box .con:nth-child(2){
	transition: 1s;
	transition-delay: 0.6s;
}
.screen6 .box .login_btn{
	margin-top: 40px;
	transition: 1s;
	transition-delay: 0.9s;
}
.screen6 .box .pic_img_box img{
	width: 650px;
}
/*————————————————————————————————————————————————————————————————————————————————————————————————————————————————*/
.screen7 .box{
	margin-top: 108px;
	display: inline-block;
	overflow: hidden;
}
.screen7 .box > div{
	float: left;
}
.screen7 .box .video_box{
	width: 560px;
	height: 315px;
	background: #f2f2f2;
}
.screen7 .box .con{
	width: 360px;
	height: 315px;
	padding: 20px 25px;
	background: #fff;
}
.screen7 .box .con p{
	margin-top: 20px;
}
/*————————————————————————————————————————————————————————————————————————————————————————————————————————————————*/
.footer{
	position: absolute;
	bottom: 0;
	left: 0;
	right: 0;
}
.footer .f-top{
	padding: 30px 0 20px;
	overflow: hidden;
	background: rgba(37,85,177,0.7);
}
.footer .f-left{
	width: 970px;
	padding: 0 15px;
	margin: 0 auto;
}
.footer .f-left ul{
	float: left;
}
.footer .f-left ul li{
	margin-right: 50px;
	color: #fff;
}
.footer .f-left ul li a{
	color: #d5d5d5;
	
}
.footer .f-left ul li h4{
	margin-bottom: 20px;
}
.footer .f-right{
	float: left;
	border-left: 1px solid #d5d5d5;
	margin-top: 30px;
}
.footer .f-right a{
	display: block;
	width: 180px;
	padding: 10px 20px 10px 50px;
	border: 1px solid #fff;
	border-radius: 46px;
	margin: 10px 50px;
}
.footer .f-right a:first-child{
	background: url('../img/erweima.png') no-repeat;
	background-position: 25px;
	background-size: auto 60%;
}
.footer .f-right a:last-child{
	background: url('../img/chat.png') no-repeat;
	background-position: 25px;
	background-size: auto 60%;
}
.footer .f-right a span{
	font-size: 16px;
	color: #fff;
	margin-left: 15px;
}
.footer .f-right a:first-child:hover{
	text-decoration: none;
	background: #5cb85c url('../img/erweima.png') no-repeat;
	background-position: 25px;
	background-size: auto 60%;
	border: 1px solid #5cb85c;
}
.footer .f-right a:last-child:hover{
	text-decoration: none;
	background: #5cb85c url('../img/chat.png') no-repeat;
	background-position: 25px;
	background-size: auto 60%;
	border: 1px solid #5cb85c;
}
.f-bottom {
    height: 40px;
    line-height: 10px;
    font-size: 10px;
    padding: 8px 0;
    text-align: center;
    background: #fff;
}

.f-bottom p a{
	color: #666;
}
.f-bottom p a:hover{
	text-decoration: none;
}
/*————————————————————————————————————————————————————————————————————————————————————————————————————————————————*/
/*元素初始位置*/
div.no:nth-child(1) .pic_logo img{
	margin-top: -400px;
}
div.no:nth-child(1) .tli img{
	width: 0;
}
div.no:nth-child(1) .login_btn{
	bottom: -50px;
}
/*————————————————————*/
div.no:nth-child(2) .con{
	margin-top: 20%;
	opacity: 0;
}
div.no:nth-child(2) .pic_img_box img{
	margin-left: 920px;
}
/*————————————————————*/
div.no:nth-child(3) .con h4{
	margin-left: 150px;
	opacity: 0;
}
div.no:nth-child(3) .con h1{
	margin-left: 150px;
	opacity: 0;
}
div.no:nth-child(3) .con p{
	margin-top: -50px;
	opacity: 0;
}
div.no:nth-child(3) .con .login_btn{
	margin-top: 300px;
	opacity: 0;
}
div.no:nth-child(3) .pic_img_box{
	right: -800px;
}
/*————————————————————*/
div.no:nth-child(4) .pic_img_box img:nth-child(1){
	width: 0;
	height: 0;
}
div.no:nth-child(4) .pic_img_box img:nth-child(2){
	width: 0;
	height: 0;
}
div.no:nth-child(4) .pic_img_box img:nth-child(3){
	width: 0;
	height: 0;
}
div.no:nth-child(4) .pic_img_box img:nth-child(4){
	width: 0;
	height: 0;
}
div.no:nth-child(4) .pic_img_box img:nth-child(5){
	width: 0;
	height: 0;
}
div.no:nth-child(4) .pic_img_box img:nth-child(6){
	width: 0;
	height: 0;
}
div.no:nth-child(4) .pic_img_box img:nth-child(7){
	width: 0;
	height: 0;
}
div.no:nth-child(4) .pic_img_box img:nth-child(8){
	width: 0;
	height: 0;
}
div.no:nth-child(4) .pic_img_box img:nth-child(9){
	width: 0;
	height: 0;
}
/*————————————————————*/
div.no:nth-child(5) .box>h4{
	margin-top: -50px;
	margin-bottom: 60px;
	opacity: 0;
}
div.no:nth-child(5) .box>h2{
	margin-top: -50px;
	margin-bottom: 60px;
	opacity: 0;
}
div.no:nth-child(5) .box>p{
	margin-top: -50px;
	margin-bottom: 80px;
	opacity: 0;
}
div.no:nth-child(5) .box>.con{
	margin-top: -50px;
	margin-bottom: 80px;
	opacity: 0;
}
div.no:nth-child(5) .box>.login_btn{
	opacity: 0;
}
/*————————————————————*/
div.no:nth-child(6) .box .con{
	margin-top: 80px;
	opacity: 0;
}
div.no:nth-child(6) .box .login_btn{
	margin-top: 100px;
	opacity: 0;
}
